An assembled ultra-low energy consumption photovoltaic curtain wall system

Abstract

This utility model discloses a prefabricated ultra-low energy photovoltaic curtain wall system, comprising several spliced ​​unit frames. Each unit frame includes an adjacent first frame and a second frame. Curtain wall glass is installed in the first frame near the exterior. A photovoltaic frame is detachably connected to the exterior side of the second frame. A photovoltaic layer module is installed within the photovoltaic layer module, and a thermal insulation layer is provided inside the second frame. An interior decorative layer is installed on the interior side of the second frame, closely adhering to the thermal insulation layer located within the second frame. This prefabricated ultra-low energy photovoltaic curtain wall system, through improvements to the frame structure, the structure of each layer, and their connection methods, effectively reduces the installation difficulty of the curtain wall system, improves on-site construction efficiency, and features a reasonable structure, high integration, quick installation, excellent thermal insulation performance, good ventilation and heat dissipation, and easy maintenance and replacement.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic curtain wall technology, specifically to a prefabricated ultra-low energy consumption photovoltaic curtain wall system. Background Technology

[0002] Currently, building curtain walls are developing towards energy conservation, environmental protection, renewable energy utilization, and industrialized construction. Traditional photovoltaic curtain wall systems have the following problems:

[0003] (1) Low installation efficiency: The photovoltaic modules, insulation layer, support structure, etc. are mostly installed on-site in layers and blocks. The process is complicated and time-consuming, which does not conform to the concept of prefabricated buildings.

[0004] (2) Insufficient thermal insulation performance: The thermal insulation performance often fails to meet the requirements of ultra-low energy consumption building standards.

[0005] (3) Inadequate ventilation and heat dissipation design: affects photovoltaic power generation efficiency and building energy consumption.

[0006] (4) Difficult to repair and replace: When photovoltaic modules or internal components are damaged, it is difficult to disassemble and replace them.

[0007] (5) Low system integration: The photovoltaic power generation layer, insulation layer and ventilation layer are not pre-integrated in the factory and are assembled on site, resulting in many interference factors and difficulty in quality control.

[0008] Therefore, there is an urgent need to develop a prefabricated photovoltaic curtain wall system that is highly integrated, easy to install, meets ultra-low energy consumption requirements, and is easy to maintain. Summary of the Invention

[0009] The purpose of this invention is to address the problems existing in the prior art by providing a prefabricated ultra-low energy consumption photovoltaic curtain wall system.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A prefabricated ultra-low energy photovoltaic curtain wall system includes several spliced ​​unit frames. Each unit frame includes an adjacent first frame and a second frame. The first frame has curtain wall glass near the outside. The second frame has a photovoltaic frame detachably connected to its outside side. The photovoltaic frame has a photovoltaic layer module. The inside of the photovoltaic layer module extends into the second frame and is further provided with a thermal insulation layer. The inside of the second frame has an interior decoration layer that is tightly attached to the thermal insulation layer located within the second frame.

[0012] This prefabricated ultra-low energy photovoltaic curtain wall system effectively reduces the installation difficulty of the curtain wall system and improves on-site construction efficiency by improving the frame structure, the structure of each layer and their connection methods. It also features reasonable structure, high integration, quick installation, excellent thermal insulation performance, good ventilation and heat dissipation, and easy maintenance and replacement.

[0013] Both the unit frame and the photovoltaic frame are modular assembly structures that can be mass-produced in a factory and quickly assembled on-site. The unit frame can be spliced ​​with other unit frames in all directions to form a large-area curtain wall frame system. The photovoltaic frame can be independently installed in each unit frame and can be used to connect and install photovoltaic modules. These frames are all made of thermally broken profiles to effectively block heat transfer channels. Furthermore, their detachable design allows for individual replacement of damaged components, facilitating individual maintenance of each unit and reducing overall maintenance costs.

[0014] Furthermore, the unit frame includes a central column, and male and female columns located on both sides; an upper and lower crossbeam are provided between the male and central columns, and they are connected to form the first frame; an upper and lower crossbeam are also provided between the female and central columns, and they are connected to form the second frame.

[0015] Furthermore, the outer sides of the male column and the female column of the unit are provided with mutually cooperating quick-connect positioning parts, and the outer sides of the upper crossbeam and the lower crossbeam of the unit are respectively provided with mutually cooperating splicing and locking structures.

[0016] Furthermore, the photovoltaic frame includes photovoltaic columns on the left and right sides and photovoltaic beams on the top and bottom sides. The inner side of the photovoltaic columns is provided with multiple connecting steel parts, which connect to the second frame. The outer periphery of the photovoltaic frame is also provided with multiple aluminum plate boxes, which connect to the outer side of the second frame and form a closed structure.

[0017] Furthermore, the photovoltaic layer assembly includes a photovoltaic glass panel connected to the photovoltaic frame and a wiring system connected to the photovoltaic glass panel, the wiring system being led out from the photovoltaic frame; the indoor side of the photovoltaic frame is also provided with a backing plate, and a ventilation cavity is formed between the backing plate and the photovoltaic glass panel.

[0018] Furthermore, the thermal insulation layer includes a vacuum insulation board disposed on the outer side of the second frame, a first thermal insulation layer is provided between the outer side of the vacuum insulation board and the photovoltaic frame, and a second thermal insulation layer is provided between the vacuum insulation board and the interior decoration layer.

[0019] Furthermore, the first insulation layer and the second insulation layer are respectively filled with insulating rock wool, or a mixture of insulating rock wool and foamed polyurethane filler.

[0020] Furthermore, the interior decorative layer is a metal plate or fiber-reinforced cement board installed on the interior side of the second frame.

[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. This prefabricated ultra-low energy consumption photovoltaic curtain wall system, through improvements to the frame structure, the structure of each layer, and their connection methods, can effectively reduce the installation difficulty of the curtain wall system, improve on-site construction efficiency, and has the characteristics of reasonable structure, high integration, quick installation, excellent thermal insulation performance, good ventilation and heat dissipation, and easy maintenance and replacement; 2. The unit frame and the photovoltaic frame are both modular assembly structures, which can be prefabricated in batches in the factory and quickly assembled on the construction site. These frames can all be made of thermally broken bridge profiles to effectively block heat transfer channels; 3. Each module adopts a detachable connection design, so that it can be disassembled in case of damage. 4. The first frame is equipped with curtain wall glass on the outdoor side, and the second frame is connected to install the photovoltaic frame and photovoltaic layer components to realize photovoltaic power generation. This arrangement enables each unit to have the functions of lighting and power generation, without affecting indoor lighting and can also use sunlight to generate electricity. 5. The filling of the thermal insulation layer and the thermal insulation material at each node can ensure an extremely low heat transfer coefficient (K value), so that its overall heat transfer coefficient K value meets the requirements of ultra-low energy consumption buildings. 6. The structure is safe and reliable: the unit frame provides sufficient rigidity and strength, and the standardized connection nodes ensure the overall structural performance and adaptability to deformation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the exterior side of the unit frame of a prefabricated ultra-low energy photovoltaic curtain wall system according to this utility model;

[0023] Figure 2 This is a schematic diagram of the indoor side of the unit frame of a prefabricated ultra-low energy photovoltaic curtain wall system according to this utility model;

[0024] Figure 3 This is a schematic diagram of the outdoor side of the photovoltaic frame of this utility model;

[0025] Figure 4 This is a schematic diagram of the indoor side of the photovoltaic frame of this utility model;

[0026] Figure 5 This is a partial cross-sectional schematic diagram of a prefabricated ultra-low energy consumption photovoltaic curtain wall system according to the present invention;

[0027] Figure 6 This is a partial vertical cross-sectional schematic diagram of a prefabricated ultra-low energy consumption photovoltaic curtain wall system according to this utility model;

[0028] In the diagram: 1. First frame; 2. Second frame; 3. Central column of unit; 4. Male column of unit; 5. Female column of unit; 6. Upper beam of unit; 7. Lower beam of unit; 8. Photovoltaic frame; 801. Photovoltaic column; 802. Photovoltaic beam; 803. Connecting steel parts; 9. Curtain wall glass; 10. Photovoltaic layer module; 11. Aluminum box; 12. Backing plate; 13. Ventilation cavity; 14. Vacuum insulation board; 15. Second insulation layer; 16. First insulation layer; 17. Interior decoration layer; 18. Quick-connect positioning piece; 19. Splicing and interlocking structure. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-6 As shown, a prefabricated ultra-low energy photovoltaic curtain wall system includes several spliced ​​unit frames. Each unit frame includes an adjacent first frame 1 and a second frame 2. The first frame 1 has a curtain wall glass 9 near the outside. The second frame 2 has a photovoltaic frame 8 detachably connected to its outside side. The photovoltaic frame 8 has a photovoltaic layer module 10. The inner side of the photovoltaic layer module 10 extends into the second frame 2 and is provided with a thermal insulation layer. The inner side of the second frame 2 has an interior decoration layer 17, which is closely attached to the thermal insulation layer located inside the second frame 2.

[0032] This prefabricated ultra-low energy photovoltaic curtain wall system improves the frame structure, the structure of each layer and their connection methods, which can effectively reduce the installation difficulty of the curtain wall system and improve the on-site construction efficiency. It also features reasonable structure, high integration, quick installation, excellent thermal insulation performance (meeting the ultra-low energy consumption standard), good ventilation and heat dissipation, and easy maintenance and replacement.

[0033] Both the unit frame and the photovoltaic frame 8 are modular assembly structures that can be mass-produced in the factory and quickly assembled on the construction site. The unit frame can be spliced ​​with other units in all directions to form a large-area curtain wall frame system. The photovoltaic frame can be installed independently in each unit frame and can be used to connect and install photovoltaic layer modules. All these frames can be made of thermally broken profiles to effectively block heat transfer channels.

[0034] The first frame 1 has a glass window frame on its exterior side, which can be used to connect and install the curtain wall glass 9 (such as multi-layer laminated + multi-cavity insulated tempered glass). The interior side of the first frame 1 can also form a window sill structure. After the second frame 2 connects and installs the photovoltaic frame 8 and photovoltaic layer module 10, it can realize photovoltaic power generation. This arrangement enables each unit to have both lighting and power generation functions, without affecting indoor lighting and while still being able to generate electricity using sunlight. The angle between the first frame and the second frame is greater than 90 degrees.

[0035] The photovoltaic frame 8 adopts a detachable connection design, and the photovoltaic layer module 10 also adopts a detachable design, so that these parts can be replaced individually when damaged, which facilitates individual maintenance of each unit and reduces the overall maintenance cost.

[0036] The thermal insulation layer can ensure an extremely low heat transfer coefficient (K value), and the interior decorative layer 17 can meet the requirements of interior facade paving and aesthetics.

[0037] Furthermore, the unit frame includes a central column 3, and two male columns 4 and female columns 5 located on both sides; an upper crossbeam 6 and a lower crossbeam 7 are provided between the male column 4 and the central column 3, and are connected to form the first frame 1; an upper crossbeam 6 and a lower crossbeam 7 are also provided between the female column 5 and the central column 3, and are connected to form the second frame 2.

[0038] The column 3 in the unit can be connected to form both the first frame 1 and the second frame 2. Together with the male column 4 and the female column 5 of the unit, as well as the upper beam 6 and the lower beam 7 of the unit, it forms a unit structure with two mounting frames. The structure of the entire unit frame is not only simple and sturdy, but also easy to assemble.

[0039] The first frame 1 is also provided with an intermediate reinforcing beam connecting the column 3 in the unit body and the male column 4 in the unit body. The second frame 2 is also provided with an intermediate reinforcing beam connecting the column 3 in the unit body and the female column 5 in the unit body. This arrangement can further improve the strength and stability of the frame.

[0040] Furthermore, the outer sides of the unit's male column 4 and female column 5 are equipped with mutually cooperating quick-connect positioning components 18, and the outer sides of the unit's upper crossbeam 6 and lower crossbeam 7 are respectively equipped with mutually cooperating splicing and locking structures 19. These quick-connect positioning components 18 and splicing and locking structures 19 enable precise positioning and rapid installation of adjacent units in both the horizontal and vertical directions, significantly improving on-site construction efficiency. On-site operations only require hoisting, insertion, and fastening, greatly improving construction efficiency and quality, significantly shortening the construction period, and meeting the requirements of prefabricated buildings.

[0041] In this embodiment, the quick-connect positioning component 18 is also divided into male and female positioning components for mating connection; the splicing and locking structure 19 includes a connecting arm disposed above the upper crossbeam of the unit body, and a plug-in groove and a limiting arm disposed below the lower crossbeam of the unit body. The connecting arm in the middle is inserted into the plug-in groove, and the connecting arm on the outside abuts against the outside of the limiting arm. After they are locked together, they can form a locking structure that is mutually stressed, so that the upper and lower units can be spliced ​​together.

[0042] Furthermore, the photovoltaic frame 8 includes photovoltaic columns 801 on the left and right sides and photovoltaic beams 802 on the upper and lower sides. The photovoltaic columns 801 are provided with multiple connecting steel parts 803 on their inner sides, and the connecting steel parts 803 are connected to the second frame 2. The photovoltaic frame 8 is also provided with multiple aluminum plate boxes 11 on its outer periphery, and the aluminum plate boxes 11 are connected to the outer side of the second frame 2 to form a closed loop structure.

[0043] The combination of multiple photovoltaic pillars 801 and photovoltaic beams 802 can create a rectangular photovoltaic frame, which also has a reinforcing beam structure inside. Multiple connecting steel parts 803 on the sides of the photovoltaic pillars 801 can be easily fixed and installed onto the second frame 2, and also facilitate subsequent disassembly. The connecting steel parts 803 can be bent steel sheet structures.

[0044] The 3mm thick aluminum plate box 11 reserved around the outdoor perimeter can form a circumferential closed structure around the photovoltaic frame 8. One side extension of the aluminum plate box 11 is connected to the photovoltaic frame 8, and the other side extension is connected to the second frame 2. This arrangement can conceal the internal connection structure, making the exterior outline of the entire unit more aesthetically pleasing. On the other hand, it can also utilize its internal space to fill with heat insulation material. The space between the aluminum plate box, the second frame, and the photovoltaic frame can also be used to fill with heat insulation material, further improving the heat insulation performance at the nodes.

[0045] Furthermore, the photovoltaic layer module 10 includes a photovoltaic glass panel connected to the photovoltaic frame 8 and a wiring system connected to the photovoltaic glass panel, the wiring system being led out from the photovoltaic frame to the interior; the interior side of the photovoltaic frame 8 is also provided with a backing plate 12, and a ventilation cavity 13 is formed between the backing plate 12 and the photovoltaic glass panel.

[0046] The photovoltaic glass panel can absorb sunlight to generate electricity, such as using crystalline silicon or thin-film photovoltaic panels. A ventilation cavity 13 is provided between the photovoltaic glass panel and the internal backing panel to facilitate heat flow during photovoltaic power generation, improve power generation efficiency, and reduce the temperature of the backing panel. The thickness of the ventilation cavity (from indoors to outdoors) is 30-60 mm, preferably 50 mm.

[0047] Furthermore, the thermal insulation layer includes a vacuum insulation board 14 disposed on the outer side of the second frame 2, a first thermal insulation layer 16 disposed between the outer side of the vacuum insulation board 14 and the photovoltaic frame 8, and a second thermal insulation layer 15 disposed between the vacuum insulation board 14 and the interior decoration layer 17.

[0048] Insulation layers are provided on the inner side of the ventilation cavity 13 and the second frame 2, which can greatly improve the thermal insulation performance of the unit and make its overall heat transfer coefficient K value meet the requirements of ultra-low energy consumption buildings.

[0049] Furthermore, the first insulation layer 16 and the second insulation layer 15 are respectively filled with insulating rock wool, or a mixture of insulating rock wool and foamed polyurethane filler.

[0050] Furthermore, the interior decorative layer 17 is a metal plate or fiber-reinforced cement board installed on the interior side of the second frame 2. These boards can be used as interior decorative surfaces to meet aesthetic requirements, and can also serve as airtight or vapor barrier layers to prevent water vapor from penetrating the internal structure.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated ultra-low energy photovoltaic curtain wall system, comprising several spliced ​​and installed unit frames, characterized in that, The unit frame includes an adjacent first frame and a second frame. The first frame has a curtain wall glass near the outside. The second frame has a photovoltaic frame detachably connected to the outside. The photovoltaic frame has a photovoltaic layer module. The inner side of the photovoltaic layer module extends into the second frame and is provided with a thermal insulation layer. The inner side of the second frame has an interior decoration layer, which is closely attached to the thermal insulation layer located inside the second frame.

2. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 1, characterized in that, The unit frame includes a central column, and male and female columns located on both sides; an upper and lower crossbeam are provided between the male and central columns to form the first frame; an upper and lower crossbeam are also provided between the female and central columns to form the second frame.

3. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 2, characterized in that, The outer sides of the male column and the female column of the unit are provided with quick-connect positioning parts that cooperate with each other, and the outer sides of the upper crossbeam and the lower crossbeam of the unit are respectively provided with splicing and locking structures that cooperate with each other.

4. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 1, characterized in that, The photovoltaic frame includes photovoltaic columns on the left and right sides and photovoltaic beams on the top and bottom sides. The inner side of the photovoltaic columns is provided with multiple connecting steel parts, which connect to the second frame. The outer periphery of the photovoltaic frame is also provided with multiple aluminum plate boxes, which connect to the outer side of the second frame and form a closed structure.

5. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 1, characterized in that, The photovoltaic layer assembly includes a photovoltaic glass panel connected to the photovoltaic frame and a wiring system connected to the photovoltaic glass panel, the wiring system being led out from the photovoltaic frame; the indoor side of the photovoltaic frame is also provided with a backing plate, and a ventilation cavity is formed between the backing plate and the photovoltaic glass panel.

6. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 1, characterized in that, The thermal insulation layer includes a vacuum insulation board disposed on the outer side of the second frame, a first thermal insulation layer between the outer side of the vacuum insulation board and the photovoltaic frame, and a second thermal insulation layer between the vacuum insulation board and the interior decoration layer.

7. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 6, characterized in that, The first insulation layer and the second insulation layer are respectively filled with insulating rock wool, or a mixture of insulating rock wool and foamed polyurethane as filler.

8. The prefabricated ultra-low energy photovoltaic curtain wall system according to claim 1, characterized in that, The interior decorative layer is a metal plate or fiber-reinforced cement board installed on the interior side of the second frame.

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